7/3÷(4/5+1/4)简便计算
7/3÷(4/5+1/4)简便计算
7/3÷(4/5+1/4)
=7/3÷(16/20+5/20)
=7/3÷21/20
=7/3×20/21
=20/9
4/5×4/7+1/5÷7/4 简便计算
4/5×4/7+1/5÷7/4
= 4/5×4/7+1/5×4/7
= (4/5 + 1/5)× 4/7
= 1× 4/7
=4/7
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7/5×4/3+7/5×4/3用简便计算
7/5×4/3+7/5×4/3用简便计算
解:
7/5×4/3+7/5×4/3
=7/5×4/3×2
=56/15
7/8-1/5+1/8-4/5简便计算
7/8-1/5+1/8-4/5
=(7/8+1/8)-(1/5+4/5)
=1-1
=0
3/5+1/2×4/5的拦伍简便计算
3/5+1/2×4/5
=3/5+2/5
=1
这题直接计算最简便
5/6-1/3*4/5+1/3简便计算简磨或
因为6、5、3的最小公倍数为30
所以原式=(5÷6-1÷3×4÷5+1÷3)×30÷30
=(5÷6×30-30÷3×4÷5+30÷3)÷30 乘法游铅分配法所得
=(30÷6×5-30÷3÷5×4+30÷3)÷30 乘除交换法所得
=(5×5-10÷5×4+10)÷30
=(25-2×4+10)÷30
=(25+10-8)÷30
=27÷30
=9÷10 除数和被除数同时除以3所得
=0.9
简便计算4/7+3/7*7/155+4/5
简便计算4/7+3/7*7/15+4/5
4/7+3/7*7/15+4/5
=4/7+1/5+4/5
=4/7+1
=11/7
4/5÷[(3/5+1/2)×2]的简便计算
4/5÷[(3/5+1/2)×2]
=4/5÷(3/5x2+1/2x2)
=4/5÷(6/5+1)
=4/5÷11/5
=4/11
简便计算【要过程,要简便】4/9÷【4/5-(1/5+1/3)】
4/9÷【4/5-(1/5+1/3)】
=4/9÷(4/5-1/5-1/3)
=4/9÷(3/5-1/3)
=4/9÷(9/15-5/15)
=4/9÷4/15
=4/9×15/4
=5/3
7/13×(4/5÷7/39)简便计算
7/13×(4/5÷7/39)
=7/13×4/5×39/7
=7/13×39/7×4/5
=3×4/5
=12/5